What Happened to Dag Hammarskjöld’s Plane in 1961?
Dag Hammarskjöld died on September 18, 1961, when the aircraft carrying him and his delegation crashed near Ndola, in what was then Northern Rhodesia (now Zambia). At the time, Hammarskjöld was serving as Secretary-General of the United Nations and was en route to negotiate a ceasefire during the Congo Crisis.
The aircraft was a Douglas DC-6 chartered by the United Nations. Known by the call sign “SE-BDY,” it went down shortly before landing at Ndola Airport. All but one of the sixteen people on board were killed in the crash. Hammarskjöld was among those who died at the scene. The sole survivor, Harold Julien, died several days later.
Why Was Hammarskjöld Traveling to Ndola?
Hammarskjöld was undertaking a diplomatic mission to meet with Moïse Tshombe, the leader of the breakaway Congolese province of Katanga. His goal was to pursue a peaceful resolution and reduce hostilities between United Nations peacekeeping forces and Katangan authorities during a period of escalating violence.
The flight to Ndola was part of a broader effort to negotiate a ceasefire and stabilize the situation on the ground.
Investigations Into the Crash
In the years following the crash, several official inquiries were conducted to determine the cause of the accident. Early investigations were carried out by the authorities in Northern Rhodesia. Another inquiry was performed by the UN to examine the possibility of pilot error, mechanical failure, or other contributing factors.
However, questions about the circumstances of the crash have persisted. Over time, additional testimony and archival material led to renewed interest in the case.
In recent years, the United Nations has undertaken further reviews of the available evidence. Independent panels appointed by the UN have examined witness statements, technical data, and previously undisclosed documents related to the crash and its aftermath.
Ongoing Historical Interest
Historians and investigators continue to examine the crash of Hammarskjöld’s aircraft. However, they have not reached universal agreement on its cause. Scholars, journalists, and UN-appointed experts have continued to study the available material in an effort to better understand the events of September 1961.
The United Nations has periodically revisited the case as new information has come to light. This reflects the enduring significance of Hammarskjöld’s mission and the circumstances surrounding his death.
Sara Causey’s forthcoming project, Simply Dag: The Private Man in a Public—and Dangerous—Office, will be released globally on July 29th. You can find her award-winning biography, Decoding the Unicorn: A New Look at Dag Hammarskjöld, on Amazon.
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